77798995

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 101928960

約数和(自身を除く): 24129965

約数列:

[1, 5, 23, 31, 115, 139, 155, 157, 695, 713, 785, 3197, 3565, 3611, 4309, 4867, 15985, 18055, 21545, 21823, 24335, 99107, 109115, 111941, 495535, 501929, 559705, 676513, 2509645, 3382565, 15559799, 77798995]

約数ペア:

[(1, 77798995), (5, 15559799), (23, 3382565), (31, 2509645), (115, 676513), (139, 559705), (155, 501929), (157, 495535), (695, 111941), (713, 109115), (785, 99107), (3197, 24335), (3565, 21823), (3611, 21545), (4309, 18055), (4867, 15985)]